JPS6349791B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a roof snow melting device that can be easily installed on the roof of an existing building, etc., and also reliably eliminates the need for removing snow.

The configuration will be described in detail with reference to the accompanying drawings as follows.

A small gap 2 is placed slightly above the roof top surface 1' of a roof 1 that has been completely waterproofed and equipped with drainage facilities, such as buildings that are currently being built.
A folded metal roof 5 is provided which has the durability to support the roof and has water holes 4 in the troughs 5' through which melted water can drip onto the roof top surface 1'.

The drawing shows roof 1 as a rooftop and metal folding roof 5.
The water passage holes 4 are provided at appropriate intervals at the bottom of the valley 5'.

Although the embodiment has been described above, warm air is introduced into a small gap 2 formed below the folded metal roof 5 and the top surface 1' of the roof.

For example, a hot air vent 8 connected to the indoor room 7 provided in the roof 1
It is better to design the system so that the exhaust air from the heater 9 used indoors 7 or the warm air itself from the indoors 7 is introduced.

In the figure, reference numeral 10 is a re-entry prevention umbrella having a warm air release window 11, and 12 is a fan.

Further, the same effect can be obtained even if the air gap 2 is designed to directly heat the air by disposing a hot water pipe or a panel heater in the gap 2.

Alternatively, the periphery of the roof surface may be left intact to cover the folded metal roof, and the gap 2 may be sealed with direct snow accumulation.

Conventional methods for melting snow on roofs can be roughly divided into two methods: spraying warm water on the roof to melt it, and heating the roof to melt it.The latter method involves placing hot water pipes in the attic,
There are methods such as placing heat plates on the roof, both of which provide a special heat source for snow melting.

Of course, it is natural to think that in order to melt snow, a heat source is necessary to melt it, but the present invention takes a leap forward from this natural idea and separates snow and water, which has not been noticed until now. In addition, by providing a void covered with snow, the snow is melted by the heat retention effect of the void, solar heat, and indoor warm air.

In other words, since a folded metal roof is installed with a void above the roof that has a rainwater drainage function,
Snowfall accumulates on the folded metal roof, creating snow-free voids within the snow.

Under conditions where the roof is warmed even slightly by residual heat indoors, or when the sun's radiant heat warms the roof on sunny days, these voids are cut off from the outside air by snow and have a heat-retaining effect, so they are warmer than the lower layer of snow. The snow will melt.

When snowfall melts from below, the height of the snowfall decreases by that amount, and the amount of snowfall decreases only when the melted water is removed. However, in the absence of voids as in the present invention, the snowfall does not actually melt. The melt water is immediately wicked up by capillary action into the contacting snowpack, and the melt water is not removed.

This hinders the snow melting effect, and the snow accumulation does not subside quickly, and it will snow again soon, so the snow melting effect will not be obtained, which means that the cost of the snow melting heat source will have to be increased. This is the snow melting method.

In particular, this phenomenon of sucking up melt water becomes a major hindrance in order to satisfy the condition of not using a special heat source for snow melting as in the present invention.

In this regard, in the present invention, a void is formed on the roof, and water holes are provided in the valleys of the folded metal roof that form this void, so melted water drips from the water hole onto the upper surface of the roof. Water that drips onto the top surface is quickly drained away by the roof's rainwater drainage function, and is quickly drained away without freezing due to the heat retention effect of the voids insulated by the snow. Melted water is separated from the snow and does not come into direct contact with the snow. It won't be sucked up by snow,
Water drains through a tunnel-shaped gap to the top of the roof.

Due to this phenomenon, even if the snow melts only a little, the melted water will be quickly removed, resulting in a significant snow melting effect, and even in areas with heavy snowfall like Tokamachi City, it will not snow even once. It has been proven that you don't need to put down.

The present invention is easier to install on a flat roof such as the roof of a current building, and even in the case of a new building, in the design of installing the roof snow melting device of the present invention, waterproofing of the roof and specifications of drainage equipment are required. It is possible with simple specifications without considering the above.

In addition, it is extremely easy to design the device so that warm air is forcibly introduced into the void, and the introduction of warm air makes snow melting even better, making it an excellent feature as a roof snow melting device in snowy areas.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram showing the implementation state, Figure 2 is the first
It is an enlarged sectional view of the figure. DESCRIPTION OF SYMBOLS 1... Roof, 1'... Roof top surface, 2... Gap, 3... Snow cover, 4... Water hole, 5... Metal folded roof, 5'... Valley.

Claims (1)

[Claims] 1 A small gap is placed just above the roof top surface of the roof that has a rainwater drainage function, and a metal folding structure is constructed that is durable enough to support snowfall and has water holes in the valleys that allow melt water to drip onto the roof top surface. A roof snow melting device characterized by having a slatted roof.